RT Journal Article
T1 Kinetics of helium bubble formation in nuclear materials
A1 Bonilla, Luis L.
A1 Carpio Rodríguez, Ana María
A1 Neu, J. C.
A1 Wolfer, W. G.
AB The formation and growth of helium bubbles due to self-irradiation in plutonium has been modelled by discrete kinetic equations for the number densities of bubbles having k atoms. Analysis of these equations shows that the bubble size distribution function can be approximated by a composite of: (i) the solution of partial differential equations describing the continuum limit of the theory but corrected to take into account the effects of discreteness, and (ii) a local expansion about the advancing leading edge of the distribution function in size space. Both approximations contribute to the memory term in a close integrodifferential equation for the monomer concentration of single helium atoms. The present boundary layer theory for discrete equations is compared to the numerical solution of the full kinetic model and to the previous approximation of Schalclach and Wolfer involving a truncated system of moment equations.
PB Elsevier
SN PHYSICA D-NONLINEAR PHENOMENA
YR 2006
FD 2006-02-01
LK https://hdl.handle.net/20.500.14352/49862
UL https://hdl.handle.net/20.500.14352/49862
LA eng
NO Bonilla, L. L., Carpio Rodríguez, A. M., Neu, J. C., Wolfer, W. G. «Kinetics of Helium Bubble Formation in Nuclear Materials». Physica D: Nonlinear Phenomena, vol. 222, n.o 1-2, octubre de 2006, pp. 131-40. DOI.org (Crossref), https://doi.org/10.1016/j.physd.2006.07.029.
NO Ministerio de Educación, Formación Profesional y Deportes (España)
NO NSF International
DS Docta Complutense
RD 25 abr 2025